Documentation Number: ESP902-2303 Manual
Chapter 1
5
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Specifications
Serial Memory:
8K bytes per port
LAN: 10/100
Mbps
Auto-detecting
10 BaseT or 100 BaseTX
Protocols
TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP
Indicators
Power – Red LED
Link – Yellow or Green (10BaseT or 100 BaseTX)
Ready – Flashing Green
Connectors
Ethernet: single RJ-45 female
Serial: two - 9 pin D-type male (DB9M)
ESP Port 1 is switch selectable as RS-232/422/485
ESP Port 2 is always RS-232
DC: ultra-miniature phone jack (2.5mm), Tip (+), Sleeve (
−
)
Serial Signals
RS-232(DTE):
TXD, RXD, RTS, CTS, DTR, DSR, DCD and GND
RS-422:
TXDB(+), TXDA(
−
), RXDB(+), RXDA(
−
), RTS(+), RTS(
−
), CTS(+),
CTS(
−
) and GND
RS-485:
Data B (+), Data A (–) and GND
Baud Rate: 110 bps to 230.4 k bps
Parity:
none, even, odd
Data Bits:
7, 8
Stop Bits:
1, 2
Power & Environment
Power Requirements:
12 VDC @ 300 mA
Operating Temperature: 0 to 50 °C (32 to 122 °F)
Storage Temperature:
−
20 to 60 °C (
−
4 to 140 °F)
Humidity:
0 – 90% Non-Condensing
Approvals: CE,
FCC
Dimensions
: 3.35 x 4.5 x 0.90 in (8.5 x 11.5 x 2.3 cm)
